【Applications】Forbidden to charge lithium battery,Voltages:12V 8A，24V 4A, Minimum starting voltage:6-150Ah (Suitable for AGM,GEL SLA VRLA). This 12v/24v smart battery charger can detect and fix battery problems and extend the life of batteries in vehicles, trucks, motorcycles, boats, 4x4s 【Multi-protections】 Protections for spark, overload, misconnection of positron and negatron, short circuit, overheat, the charger protects your safety well. Besides, the fans on both sides of the charger can avoid overheating during charging, thus extending the service life. battery life 【Intelligent LCD Display】This car battery charger can automatically detect the outside temperature, so to make changes between winter and summer modes, currents and voltages can be changed without using the battery. manual fixing,Once the battery is full,current charging will stop automatically.Data of temperature,voltage,current including battery volume will be renewed and displayed automatically. 【 Repair & Voltage